432 Park Avenue is the skinniest supertall skyscraper and tallest residential building (96 stories high) in the world. Because much of One World Trade Center's height is in its spire and its base is nearly 40 feet (12 m) lower, the rooftop of 432 Park Ave is, as of 2018, the highest in New York City.

The most remarkable thing about 432 Park, however, is not just its sheer size. It is the fact that, in a building so tall and imposing, with over 400,000 square feet of usable interior space, there are only 104 units for people to live in. 432 Park Avenue is, in short, a monument to the epic rise of the global super-wealthy. It is the house that historic inequality built. The top-floor penthouse was sold for an astonishing $95 million.